That's because the 330 has a larger diamater drum. So the smaller drum for the 328 kit hits the metal tab on the trailing arm which the parking brake level pushes against. So you have to cut it off and grind it smooth. Once you do that, no more parking brake.
Originally Posted by chivo328
I have a 4 wheel StopTech kit on my 328 and still have a parking brake.
2013 F30 328i - Melbourne Red
2011 E90 M3 - Monte Carlo Blue
2004 E46 M3 - Imola red